@cafkafk what's the source of the quote?

@selea that's news to me, I remember messages from the linux kernel after partprobe -s refusing to reload a partition table because one of the partitions is in use.
If that's changed now, great...

@selea I'd say it depends on the type of VM.
If it's a throwaway-and-rebuild-on-change machine, LVM is irrelevant.
If it's a VM that's aging like fine wine and I can't just rebuild it within 5 minutes, I'll probably be happy if I use LVM at some point, even if it's just saving me a reboot to resize a mounted partition that's in use.

That's why my VMs still get LVM by default, unless I've already designed the rebuild machinery.